| Mariehamn to Cabries | 1,301.83 mi (2,095.10 km) |
| Mariehamn to Cachan | 1,047.26 mi (1,685.40 km) |
| Mariehamn to Caen | 1,099.95 mi (1,770.19 km) |
| Mariehamn to Cagnes-sur-Mer | 1,254.62 mi (2,019.12 km) |
| Mariehamn to Cahors | 1,324.62 mi (2,131.77 km) |
| Mariehamn to Calais | 942.91 mi (1,517.46 km) |
| Mariehamn to Caluire-et-Cuire | 1,164.90 mi (1,874.73 km) |
| Mariehamn to Cambrai | 946.09 mi (1,522.59 km) |
| Mariehamn to Canet-en-Roussillon | 1,396.74 mi (2,247.83 km) |
| Mariehamn to Cannes | 1,264.34 mi (2,034.76 km) |
| Mariehamn to Canteleu | 1,045.76 mi (1,682.99 km) |
| Mariehamn to Capbreton | 1,443.71 mi (2,323.42 km) |
| Mariehamn to Carcassonne | 1,379.59 mi (2,220.23 km) |
| Mariehamn to Carmaux | 1,332.16 mi (2,143.90 km) |
| Mariehamn to Carpentras | 1,269.41 mi (2,042.91 km) |
